Welcome to Defender Canada! 
Seals, Gaskets & Plugs
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Sierra Yamaha Powerhead Gasket Set - 18-99176
$395.43 -
Sierra Mercury Lower Unit Seal Kit - 18-8382
$53.86 -
Sierra Mercury Powerhead Gasket Set - 18-64217
$297.22 -
Sierra Mercruiser Gasket Overhaul Set - 18-4384
$232.42 -
Sierra Mercruiser Gasket Overhaul Set - 18-4387
$766.95 -
Sierra Mercruiser Head Gasket Set - 18-4388
$514.68 -
Sierra Mercury Powerhead Gasket Set - 18-4359
$233.88 -
Sierra Chrysler Head Gasket - 18-3878
$58.18 -
Sierra Mercury Block Cover Gasket - 18-2810-9
$43.78 -
Sierra Yamaha Trim Seal - 18-2082
$28.23 -
Sierra Mercruiser Vortec Head Gasket Set - 18-1254
$248.26 -
Sierra Johnson/Evinrude Base Adapter to Powerhead Gasket - 18-0965
$38.02 -
Sierra Mercruiser Oil Pan Gasket - 18-1237
$63.96 -
Sierra Mercruiser Oil Pan Gasket Set - 18-0405
$79.80 -
Sierra Johnson/Evinrude Head Gasket - 18-0492
$71.14 -
Sierra Mercruiser Oil Pan Gasket Set - 18-0348
$46.66 -
Sierra Mercury Powerhead Base Gasket - 18-0378
$72.58